TY - JOUR
T1 - Influence of interfacial magnons on spin transfer torque in magnetic tunnel junctions
AU - Manchon, A.
AU - Zhang, S.
PY - 2009/5/1
Y1 - 2009/5/1
N2 - The role of interfacial electron-magnon interaction in a noncollinear magnetic tunnel junction is investigated using the transfer Hamiltonian method. It is shown that the interfacial electron-magnon scattering modifies the bias dependence of both components of the spin-transfer torque. In particular, we find that at low temperature, the magnons emission adds a quadratic contribution and at finite temperature, both quadratic and linear terms appear. These contributions can explain recent experimental results on the bias dependence of spin-transfer torque.
AB - The role of interfacial electron-magnon interaction in a noncollinear magnetic tunnel junction is investigated using the transfer Hamiltonian method. It is shown that the interfacial electron-magnon scattering modifies the bias dependence of both components of the spin-transfer torque. In particular, we find that at low temperature, the magnons emission adds a quadratic contribution and at finite temperature, both quadratic and linear terms appear. These contributions can explain recent experimental results on the bias dependence of spin-transfer torque.
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U2 - 10.1103/PhysRevB.79.174401
DO - 10.1103/PhysRevB.79.174401
M3 - Article
AN - SCOPUS:65649131287
SN - 1098-0121
VL - 79
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 17
M1 - 174401
ER -